10561610504999 has 2 divisors, whose sum is σ = 10561610505000. Its totient is φ = 10561610504998.

The previous prime is 10561610504993. The next prime is 10561610505001. The reversal of 10561610504999 is 99940501616501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10561610504999 - 2²⁸ = 10561342069543 is a prime.

It is a super-2 number, since 2×10561610504999² (a number of 27 digits) contains 22 as substring.

Together with 10561610505001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10561610504993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280805252499 + 5280805252500.

It is an arithmetic number, because the mean of its divisors is an integer number (5280805252500).

Almost surely, 2^{10561610504999} is an apocalyptic number.

10561610504999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10561610504999 is an equidigital number, since it uses as much as digits as its factorization.

10561610504999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2624400, while the sum is 56.

The spelling of 10561610504999 in words is "ten trillion, five hundred sixty-one billion, six hundred ten million, five hundred four thousand, nine hundred ninety-nine".